Results 41 to 50 of about 45,334 (191)

Making Mining Licit: Gold, Commodification, and the Everyday Performance of Law in Colombia

American Anthropologist, EarlyView.
ABSTRACT Ethnographies of resource‐making have shown that the extraction of resource value from objects is premised on obviating the emplaced lifeworlds that surrounded objects before they traveled to consumer markets. Much of this literature looks at such supply‐chain disentanglement from the viewpoint of corporate and formal regulatory practices ...
Jesse Jonkman
wiley   +1 more source

Discordance between cosmogenic nuclide concentrations in amalgamated sands and individual fluvial pebbles in an arid zone catchment [PDF]

, 2014
Based on cosmogenic 10Be and 26Al analyses in 15 individual detrital quartz pebbles (16–21 mm) and cosmogenic 10Be in amalgamated medium sand (0.25–0.50 mm), all collected from the outlet of the upper Gaub River catchment in Namibia, quartz pebbles yield
Codilean, Alexandru T., Bishop, Paul, Fabel, Derek, Xu, Sheng, Fenton, Cassandra R.   +4 more
core   +1 more source

Application of Multi‐Method Dating for Understanding the Gravettian North of Moravia, Central Europe

Archaeometry, EarlyView.
ABSTRACT This article presents the results of integrating three methods to assess the age of the Upper Palaeolithic site of Pietraszyn 11 (SW Poland), close to the Moravian Gate. Sediment chronology determined using optically stimulated luminescence produced promising, yet ambiguous results (51.0 ± 3.7 to 20.3 ± 0.7 ka).
A. Wiśniewski, B. Bujalska, D. Popović, M. Baca, K. Zarzecka‐Szubińska, A. Lemanik, M. Hein, S. Talamo, P. Moska, H. Fewlass, D. Tokarz, Z. Jary, B. Przybylski, D. Bobak, M. Połtowicz‐Bobak, K. Wertz, A. Nadachowski   +16 more
wiley   +1 more source

Underwater Laboratories for Astroparticle Physics and Deep Sea Science [PDF]

, 2006
The exploration of deep sea environments is presently at the dawn of a new era: underwater laboratories, permanently installed on the sea floor and offering power and on-line data transmission links to the shore, will allow to continuously monitor ...
CAPONE, Antonio, Piattelli, P., P. Piattelli, Migneco, E., Capone, A., PIATTELLI P., MIGNECO E, A. Capone, E. Migneco   +8 more
core   +2 more sources

Timing the Sacred: A Multi‐Step Chronological Framework for the Llullaillaco Inca Burial

Archaeometry, EarlyView.
ABSTRACT Absolute radiocarbon dating offers high precision, but its application to historical contexts, such as the Inca civilization, requires a rigorous methodological approach. This research examines methods to enhance chronological accuracy through a case study of artifacts from the Llullaillaco Capacocha sacrifice.
Dominika Sieczkowska‐Jacyna, Gabriela Recagno Browning, Mario Bernaski, Fernanda Zigaran, Maksymilian Jędrzejowski, Jacek Pawlyta, Andrzej Rakowski, Johan Reinhard, Sturt W. Manning, Dagmara Socha   +9 more
wiley   +1 more source

OBSERVATION OF SMALL-SCALE ANISOTROPY IN THE ARRIVAL DIRECTION DISTRIBUTION OF TeV COSMIC RAYS WITH HAWC [PDF]

, 2014
US National Science Foundation (NSF); US Department of Energy Office of High- Energy Physics; Laboratory Directed Research and Development (LDRD) program of Los Alamos National Laboratory; Consejo Nacional de Ciencia y Tecnologia (CONACyT), Mexico [55155,
Cotzomi, J, Ellsworth, R. W., Bautista-Elivar, N., Abeysekara, AU, DeYoung, T, Díaz-Vélez, J. C., Ellsworth, RW, Gussert, M, DeYoung, T., Braun, J., DuVernois, MA, Caballero-Mora, K. S., Barber, AS, Rosales, M. Bonilla, Galindo, A., Goodman, JA, Alfaro, R., De Léon, C., Cotti, U, Castillo, M., Alvarez, C, Cotzomi, J., Castillo, M, BenZvi, S. Y., De Leon, C, DuVernois, M. A., Arteaga-Velázquez, J. C., Gonzalez, MM, Belmont, E, Berley, D., Carramiñana, A., Garfias, F, De La Fuente, E, Fraija, N., Solares, HAA, BenZvi, SY, Fiorino, DW, Baughman, B. M., Diaz-Velez, JC, Fraija, N, Galindo, A, Arteaga-Velazquez, JC, Alvarez, JD, Berley, D, Rosales, MB, Baughman, BM, Arceo, R., Barber, A. S., Garfias, F., Hernandez, RD, Belmont, E., Alfaro, R, Bautista-Elivar, N, Alvarez, C., Arceo, R, Cotti, U., Dingus, B. L., Carraminana, A, Solares, H. A.Ayala, Abeysekara, A. U., Braun, J, De La Fuente, E., Caballero-Mora, KS, Dingus, BL, Hernandez, R. Diaz, Fiorino, D. W., Álvarez, J. D.   +66 more
core   +1 more source

Raman analysis of organic refractory materials after energetic processing: Evidence for amorphous carbon on TNOs and comets

Meteoritics &Planetary Science, EarlyView.
Abstract Amorphous carbon (αC) is found in various extraterrestrial particles, including those thought to originate from the outer Solar System. αC can form through two main processes involving C‐rich materials: exposure to energetic charged particles and thermal processing.
M. Germanà, A. Vyjidak, G. A. Baratta, B. M. Giuliano, R. G. Urso, C. Scirè, D. Fulvio, T. Grassi, P. Jusko, P. Caselli, M. E. Palumbo   +10 more
wiley   +1 more source

Cosmic noise absorption signature of particle precipitation during interplanetary coronal mass ejection sheaths and ejecta [PDF]

, 2020
We study here energetic-electron (E > 30 keV) precipitation using cosmic noise absorption (CNA) during the sheath and ejecta structures of 61 interplanetary coronal mass ejections (ICMEs) observed in the near-Earth solar wind between 1997 and 2012.
Partamies, N. (Noora), Raita, Tero, Palmroth, Minna, George, Harriet, Kilpua, Emilia, Dubyagin, Stepan, Grandin, Maxime, Juusola, L. (Liisa), Osmane, A. (Adnane), Juusola, Liisa, George, H. (Harriet), Asikainen, Timo, Dubyagin, S. (Stepan), Asikainen, T. (Timo), Partamies, Noora, Grandin, M. (Maxime), Osmane, Adnane, Kilpua, E. (Emilia), Kero, A. (Antti), Kalliokoski, Milla, Kalliokoski, M. (Milla), Palmroth, M. (Minna), Kero, Antti, Raita, T. (Tero)   +23 more
core   +1 more source

Nanoscale space weathering features in mature lunar soil revealed by TEM and APT

Meteoritics &Planetary Science, EarlyView.
Abstract Space weathering significantly alters the optical, chemical, and structural properties of lunar regolith at micro‐ and nanoscales; yet detailed nanoscale variability within individual soils remains underexplored. Here we apply transmission electron microscopy (TEM) and atom probe tomography to four mineral grains (olivine, ilmenite, and two ...
Jennika Greer, Alexander M. Kling, Luke Daly, Dieter Isheim, David N. Seidman, Michelle S. Thompson, Philipp R. Heck   +6 more
wiley   +1 more source

Time variations in cosmic ray extensive air showers. [PDF]

, 1957
Two motives are responsible for the investigation of cosmic rays. Firstly they provide the only source at present availabe of particles with extremely high energy.
Storey, John Richard
core